Why does my engine make a noise when I accelerate?
Why does my engine make a noise when I accelerate? Piston ring noise is also similar to the valve and tappet noise above; however, it is most noticeable during acceleration. Most often, this noise is caused by low ring tension, broken or worn piston rings, or worn cylinder walls. To troubleshoot each cylinder, remove the spark plugs and add a tablespoon of engine oil to each cylinder. Why does my 440 Mopar make a rattling noise? MY 440 mopar runs incredible at idle to 1500 rpm, but around 2000 rpm, the engine becomes overcome with loud rattling, noise, thousands of...